Improvement in permutation locks



between the wheels and washers. A is the spindle;

www tang g @stent @Wirey WILLIAM srnnn'rnn, or noone-stre'n,"NEWronn.

Letters Patent o. 105,383, dated July 12, 1870.

i mnovnmnnr IN PE.Rlvnna'rrolu LoeKs.4

v:the Schedule xe{ea,re c1 to in these Letters Patent and nakng part of the same To all whom it 'may concern Be it known that I, WILLIAM STREETER, of the i cityo` Rochester, inthe county of Monroe and State of New York, have invented acertainnew andluseiul Improvement in PermutationLocks, of which t'he foly -loivingis a specification.

Nature of the Invention. u My invention consists in the combination of spring r pins,`or equivalents, v,with theV indented surfaces ot' washers or intermediate stationary bodies between theY y tumblers or wheels.

` General Description. In the drawing- Figure lis an axial section. i Figure 2, a view of one of thewashers removed from place.V

Figure 3,'a view of `one of" the vpins separate, i Figure 4, an eiid view ofthe spindle with tbe spring i i collar applied.

Figure 155,- a diagram, showing-- the `friction device B B B, the tumblers o1" wheels; and .C O C, the washers between `the whee1s. 4Ihese parts are all arranged in the usual way.

Each wheel is bored with `one or more` holes, o, in i. which fitsv one or more pins, D.'

` `These pins have a'rohnded point, I), vwhich projects i out `from the face ofthe Wheel; jalso, a shoulder, e, held in the hole by headingdown the surface of fthe metal around it, by a punch or otherwise; and, furthermore, a shank, d, which extends down into the body y of the hole, and is surrounded bya coiled spring, j,

that forces thewpin out.V v

Any different form of the pin may be used, and

` Igthespring may be differently arranged, or the pin-and 1 springmay be combined `in one.

ent, is-

vresistance which always keeps them in` proper place.

As they turn, the pins not o nly bear against: the surface of the washers, but also strike into the indentations, and prevent the possibility of any slipping.

Much diiiiculty has been heretofore experienced from the loose action of the wheels, not only rendering it di'ieult to keep them in place while turning,

but even after being set they can be jai-red to different positions by any unusual movement.

f The pins striking into the indentations will prevent any jar from displacn g them under any circumstances when locked.

I disclaim the use of springs between the wheels,

and also when applied to the periplieries of corrugated wheels; but What I claim, and desire to secure by Letters Patg The combination of the spring pins D, or equivalent, with the indented surface ot' the washers or other Vintermediate stationary bodies between the wheels, as

described.

In witnesswhereof I have hereunto signed my name in the presence of two subscribing witnesses.

WILLIAM STREETER.

Witnesses R. li. OsGooD, GEO. W..MIATT. 

